30525278002780 has 48 divisors (see below), whose sum is σ = 69931043161056. Its totient is φ = 11100036602880.

The previous prime is 30525278002759. The next prime is 30525278002841. The reversal of 30525278002780 is 8720087252503.

It is a super-3 number, since 3×30525278002780³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54522832 + ... + 55079848.

It is an arithmetic number, because the mean of its divisors is an integer number (1456896732522).

Almost surely, 2^{30525278002780} is an apocalyptic number.

It is an amenable number.

30525278002780 is an abundant number, since it is smaller than the sum of its proper divisors (39405765158276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30525278002780 is a wasteful number, since it uses less digits than its factorization.

30525278002780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806134 (or 806132 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 30525278002780 in words is "thirty trillion, five hundred twenty-five billion, two hundred seventy-eight million, two thousand, seven hundred eighty".